| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spectroscopic module which is highly reliable. <P>SOLUTION: A spectroscopic module 1 is so configured that when light L1 traveling to a spectroscopic part 4 passes through a light passage hole 50, and only light which passes through a light incidence-side part 51 which is tapered toward the side of the spectroscopic part 4, and enters a light projection-side part 52 formed opposite to a bottom surface 51b of the light incidence-side part 51 is emitted from a light exit opening 52a. Consequently, stray light M made incident on a side face 51c and the bottom surface 51b of the light incidence-side part 51 is reflected to the opposite side from the light projection-side part 52, so the stray light is stopped from entering the light projection-side part 52. Therefore, the spectroscopic module 1 can be improved in reliability. <P>COPYRIGHT: (C)2013,JPO&INPIT |
